При попытке получить всплывающее сообщение, я не могу его получить. Над этим кодом в моем .js-файле находятся флажки переключения; все это работает на данный момент, но добавление их вместе и приведение итогов в поле txtTotal
- единственное, с чем я борюсь.Как добавить итоговые значения и отобразить их в текстовом поле
var total;
var outputArea;
var btnCompute;
function ToggleBurgers() {
var checkbox = document.getElementById('chkBurgers');
var burgers = document.getElementById('divBurgers');
if (checkbox.checked) {
burgers.style.visibility = 'visible';
} else {
burgers.style.visibility = 'hidden';
}
}
function ToggleFries(){
var checkbox = document.getElementById('chkFries');
var fries = document.getElementById('divFries');
if (checkbox.checked) {
fries.style.visibility = 'visible';
} else {
fries.style.visibility = 'hidden';
}
}
function ToggleDrinks(){
var checkbox = document.getElementById('chkDrinks')
var drinks = document.getElementById('divDrinks');
if (checkbox.checked) {
drinks.style.visibility = 'visible';
}else {
drinks.style.visibility = 'hidden';
}
}
function ComputeTotal() {
var total = 0;
var burgers = document.getElementById('divBurgers');
var fries = document.getElementById('divFries');
var drinks = document.getElementById('divDrinks');
var radBurgerRegular = document.getElementById('radBurgerRegular');
var radBurgerCheese = document.getElementById('radBurgerCheese');
var radBurgerBacon = document.getElementById('radBurgerBacon');
var radBurgerBaconCheese = document.getElementById('radBurgerBaconCheese');
var radFriesSmall = document.getElementById('radFriesSmall');
var radFriesMedium = document.getElementById('radFriesMedium');
var radFriesLarge = document.getElementById('radFriesLarge');
var radDrinkSoda = document.getElementById('radDrinkSoda');
var radDrinkWater = document.getElementById('radDrinkWater');
var outputArea = document.getElementById('txtTotal');
outputArea.innerHTML = total + divBurgers + divFries + divDrinks;
if (burgers.checked){
if (radBurgerRegular.checked){
total = total + radBurgerRegular;
}if (radBurgerCheese.checked){
total = total + radBurgerCheese;
}if (radBurgerBacon.checked){
total = total + radBurgerBacon;
}if (radBurgerBaconCheese.checked){
total = total + radBurgerBaconCheese;
}
}else if (fries.checked){
if (radFriesSmall.checked){
total = total + radFriesSmall;
}if (radFriesMedium.checked){
total = total + radFriesMedium;
}if (radFriesSmall.checked){
total = total + radFriesLarge;
}
} else if (drinks.checked){
if (radDrinkSoda.checked){
total = total + radDrinkSoda;
}if (radDrinkWater.checked){
total = total + radDrinkWater;
}
}
}
function init() {
var chkBurgers = document.getElementById('chkBurgers');
chkBurgers.onchange = ToggleBurgers;
var chkFries = document.getElementById('chkFries');
chkFries.onchange = ToggleFries;
var chkDrinks = document.getElementById('chkDrinks');
chkDrinks.onchange = ToggleDrinks;
var btnCompute = document.getElementById('btnCompute');
btnCompute.onclick = ComputeTotal;
var outputArea = document.getElementById('txtTotal');
outputArea.innerHTML = total
}
window.onload = init;
HTML код здесь
<!DOCTYPE html>
<html>
<head>
<title>Restaurant Menu</title>
</head>
<body>
<div class="page">
<div class="topbar">
Menu
</div>
<div class="row">
<!--Burgers CheckBox-->
<div class="cell">
<input type="checkbox" name="chkBurgers" id="chkBurgers" /> <label for="chkBurgers">Burgers</label>
</div>
<!--Cell Containing Burger Menu-->
<div class="cell" id="divBurgers" style="visibility:hidden;">
<input type="radio" name="radBurgers" id="radBurgerRegular" /><label for="radBurgerRegular">Regular (4.19)</label><br />
<input type="radio" name="radBurgers" id="radBurgerCheese" /><label for="radBurgerCheese">w/ Cheese (4.79)</label><br />
<input type="radio" name="radBurgers" id="radBurgerBacon" /><label for="radBurgerBacon">w/ Bacon (4.79)</label><br />
<input type="radio" name="radBurgers" id="radBurgerBaconCheese" /><label for="radBurgerBaconCheese">w/ Bacon and Cheese (5.39)</label><br />
</div>
</div>
<div class="clear"></div>
<div class="row">
<!--Fries CheckBox-->
<div class="cell">
<input type="checkbox" name="chkFries" id="chkFries" /><label for="chkFries">Fries</label>
</div>
<!--Cell Containing Fries Menu-->
<div class="cell" id="divFries" style="visibility:hidden;">
<input type="radio" name="radFries" id="radFriesSmall" /><label for="radFriesSmall">Small (2.39)</label><br />
<input type="radio" name="radFries" id="radFriesMedium" /><label for="radFriesMedium">Medium (3.09)</label><br />
<input type="radio" name="radFries" id="radFriesLarge" /><label for="radFriesSmall">Large (4.99)</label><br />
</div>
</div>
<div class="clear"></div>
<div class="row">
<!--Drinks CheckBox-->
<div class="cell">
<input type="checkbox" name="chkDrinks" id="chkDrinks" /><label for="chkDrinks">Drinks</label>
</div>
<!--Cell Containing Drink Menu-->
<div class="cell" id="divDrinks" style="visibility:hidden;">
<input type="radio" name="radDrinks" id="radDrinkSoda" /><label for="radDrinkSoda">Soda (1.69)</label><br />
<input type="radio" name="radDrinks" id="radDrinkWater" /><label for="radDrinkWater">Bottled Water (1.49)</label><br />
</div>
<!--Cell Containing Compute Button and Total Field-->
<div class="cell" style="float:right;">
Total Meal Cost: <input type="text" name="txtTotal" id="txtTotal" /><br /><br />
<button id="btnCompute" name="btnCompute">Compute Total</button>
</div>
</div>
<div class="clear"></div>
</div>
<link rel="stylesheet" type="text/css" href="Chapter9.css">
<script src="Chapter9.js"></script>
</body>
</html>
что вы имеете в виду под «вы не можете получить его»? неверно ли значение? Я вижу несколько потенциальных ошибок, но вам нужна дополнительная информация. также, пожалуйста, добавьте код HTML – thedarklord47
, было бы полезно добавить как полный код HTML, так и .js? –
да пожалуйста. недостаточно информации еще – thedarklord47